The Queen will speak to the nation on Sunday about the coronavirus outbreak – as the number of people who died with the virus rose by 684 in 24 hours. Buckingham Palace said the message, recorded at Windsor Castle, will be broadcast on TV and radio at 20:00 BST.The Queen, 93, records annual Christmas messages but other addresses are rare. The Department of Health said that as of 17:00 BST on 2 April, the number of deaths was 3,605, up…